Finding the Fourth Proportional to 13,834.56, 19,090.32 and 7,866.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.56 : 19,090.32 = 7,866.48 : x
2. Step 2: Convert to fraction form
   13,834.56/19,090.32 = 7,866.48/x
3. Step 3: Cross multiply
   13,834.56x = 19,090.32 × 7,866.48
4. Step 4: Simplify right side
   13,834.56x = 150,173,620.47
5. Step 5: Solve for x
   x = 150,173,620.47/13,834.56
6. Step 6: Final answer
   x = 10,854.96